Publication

Group delay measurement in single-mode fibers with true picosecond resolution using double optical modulation

Luc Thévenaz
1988
Journal paper

Abstract

Highly accurate group delay measurements in long single-mode fibers were achieved over the full 1200-1600 nm spectral range by measuring phase shifts of a modulated lightwave. The high modulation frequency is shifted down to the kilohertz range using a second optical modulation at the fiber output end, so that low-frequency, ultrasensitive detection and phase measurement can be performed with high-frequency resolution conserved. This results in extremely reliable measurements with a

Official source

https://infoscience.epfl.ch/record/128269?ln=en

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Group delay measurement in single-mode fibers with true picosecond resolution using double optical modulation

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